Carriage-lamp.



No.. 702595. Patentd lune l7, I902.

E. m. nosemawm mamas LAMP.

(Application filed Sept. 13, 1900.

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Patented June l7, I902. E. M. BOSENBLUTH.

CARRIAGE LAMP. [Application filed Sept. 18, 1900.)

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(No Model.)

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. Patented June l7, I902. E M. BOSENBLUTH.

CARRIAGE LAMP.

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Patented June 1;, I902.

E. M. ROSENBLUTH;

' CARRIAGE LAMP. (Applicatipn filed Sept. 13, 1900.)

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(No Model.)

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UNITE STATES PATENT OFFICE.

EDWIN M. ROSENBLUTH, OF PHILADELPHIA, PENNSYLVANIA.

CARRIAG E-' LAM P.

SPECIFICATION forming part of Letters Patent No. 702,595, elated Julie 1'7, 1902.

Application filed September 13, 1900- Serial No- 29,908. (No model.)

the accompanying drawings.

It is now an ordinary requirement of lawthat a moving vehicle shall continuously display a light during certain hours, failing which the user of the vehicle may be arrested and fined.

Therefore it is the object of my invention to provide a lamp wherein the total supply of oil is contained in'a plurality of distinct receptacles so arranged in normally fixed relation with the lamp structure that the contents of each receptacle may be successively utilized in operative connection with the burner. One of the advantages of such an arrangement is that thewhole supply of oil in the lamp structure cannot be expended Without the knowledge of the operator, who

is reminded to replenish his supply as soon as the contents of the first receptacle, which is operatively connected with the'burner, are exhausted. Another incidental advantage is that a short wick may be used and a brilliant smokeless flame secured throughout the con-- sumption of a large supply of oil. I

My invention consists of a lamp structure comprising an oil-burner, a plurality of distinct oil-receptacles in normally fixed relation with said burner, and means to successively utilize the contents of said receptacles in operative relation with said burner.

My invention also comprehends certain adjunctive features of lamp construction hereinafter described and claimed.

I have found it convenient to illustrate my present improvements in connection with a carriage-lamp of the type forming the subject-matter of my application, Serial N o. 25,27-1,for Letters'Patent of the United States. It is to be understood, however, that I do not desire to limit'myself thereto.

In the accompanying drawings, Figure 1 is a vertical and partly sectional view of a lamp conveniently embodying my invention. Fig. 2 is a vertical sectional view of a lamp, showing a modification of my invention, section being taken on the line 2 2 in Fig. 4:. Fig. 3

from the floor of the flame-chamber.

is a vertical sectional view of the lamp shown in Fig. 2, section being taken on the line 3 3 in Fig. 4. Fig. lis a plan sectional view taken on the line 44: in Figs. 2 and 3. Fig.

5 is a vertical sectional View showing a modified form of oil-receptacle. Fig. 6 is a perspective view showing the three side walls of the flame-chamber, which are in integral relation.

It is customary to construct a carriage-lamp with along pendent stem upon its bottom, and I shall first describe the form of my invention adapted for such a construction of lamp.

In said figures, A is the flame-chamber, whose floor A is provided with an upwardlyprojecting air-draft'dome B, having an airoutlet 1) at its top. The bottom of said dome B opens into anannular air-draft chamber A inclosed by the flange A which depends Said flange A is provided with air-inlet apertures a so arranged that the motion of the vehicle to which the lamp isfixed causes an inrush of air through the air-chamber A and dome B. I alsofind it convenient to provide air-openings from said chamber A to the fiame-chamber, aside from said dome B, as indicated at a, in the floor A. The products of combustion, surplus air, &c., escape from said flam'e-.

Fig. 1.

The flange A embraces the oil-receptacle C and serves to retain the same in concentric relation with the draft-dome B, and the upper portion of said receptacle 0 being of smaller diameter than the dome B, which in closes it, an annular air-draft space exists between said receptacle and said dome, through which the forced draft of air passes to the outlet b, and in passing cools said receptacle, becoming thereby heated before its discharge below the flame X at the top of the burnertube D.

The burner-tube D is removably secured upon the top of the receptacle 0, the'threaded shank d of the burner being engaged with the corresponding threaded socket c in said receptacle. I find it convenient to provide said burner with a flange E, which being serrated and perforated, as indicated at e in Fig.

41, serves to baflie and distribute the current of air at the dome-outlet I). Said burner is re tained at the proper height in the dome B by means of the wick-shaft F, which encounters the top of the slot h in the side of the dome B, which slot is shaped, as shown in Fig. 1, to permit the passage of the milled headf of said shaft.

The receptacle O is removably secured in operative relation with the flame-chamber by means of the bottom cap G, which is in screwthreaded engagement with the flange A as indicated at g. Said cap G is provided with a spring H, which when the parts are assembled, as shown in Fig. 1, bears upon the bottom of the receptacle 0 and not only prevents the accidental displacement of the cap G, but also serves to clamp the wick-shaft against the top of the slot 1), and thus prevent the accidental rotation of the wick-shaft. The cap G comprises an oil receptacle or reservoir O which may be in integral relation with said cap, as indicated in full lines in Fig. 1, or may be a separate structure incased by said cap, as indicated in dotted lines in said figure. Said receptacle C is conveniently provided with a screw-threaded neck 0*, nor mally closed by a cap, as shown.

The operation of the above-described form of my invention is as follows: Both of the receptacles 0 O are filled with oil, and the receptacle 0 being in operative connection with the burner D the latter may be lighted and the contents of said receptacle 0 consumed. As soon as the exhaustion of the oil from the receptacle C is manifested by the lowering of the flame or otherwise the lower cap G may be unscrewed from the flange A at its threaded connection g and the receptacle 0 recharged with a portion of the contents of the receptacle O and the parts restored to the relation shown in Fig. 1, whereupon the new supply of oil within the receptacle 0 may be consumed and the operation repeated.

Figs. 2, 3, and 4: show a modified form of my invention, comprising two counterpart oilreceptacles arranged for successive connection in operative relation with the burner D. As best shown in Fig. 2, the upper receptacle C is in operative connection with the burner D, and the lower receptacle 0 is sealed by the engagement of its threaded neck 0 with the cap a, which is fixed upon the bottom of the receptacle 0. The receptacle 0 is provided with a similar bottom cap 0 so that the positions of said two receptacles with respect to the burner and to each other may be reversed. Although Iprefer to mount the respective caps c c in recesses in the respective receptacles C 0 as shown in Fig. 2, it is obvious that they may be mounted, as indicated at 0 upon the receptacle C (Shown in Fig. 5.)

The operation of the last-described form of my invention is as follows: Both of the receptacles O C are filled with oil, and the receptacle C being in operative connection with the burner D the latter may be lighted and the contents of said receptacle 0 consumed. As soon as the exhaustion of the oil from the receptacle 0 is evident the lower cap G may be unscrewed from the flange A at g, and the full receptacle C being operatively connected with the burner D the empty receptacle 0 maybe replaced beneath the receptacle 0 to be subsequently recharged at the convenience of the operator. The parts being restored to normally fixed position with respect to the lamp-chamber, the new supply of the oil within the receptacle 0 may be consumed and the operation repeated.

As shown in Fig. 4, the wall A of the flamechamber A is provided with a socket I and set-screw 7 whereby the lamp may be supported upon a suitable bracketj in fixed relation with a carriage J. However, it is to be understood that the particular means for supporting the lamp structure is not of the essence of my present invention.

As indicated in Fig. 4:, the front wall A and outer wall A of the flame-chamber are provided with respective glass panels a M. I also find it convenient to provide the rear wall A with a door A, the top of which is hinged at a and the bottom of which is provided with a spring-catch (L as shown in Fig. 2, so that access may be had to the milled head f of the wick-shaft F without removing the oil-receptacles from their normally fixed position in the lamp structure. It is to be noted that said side walls A, A, and A are in integral relation, as shown in Fig. 6, such construction being advantageous in that a single sheet-metal stamping may be made comprising said three walls, which walls when bent, as shown in Fig. 6, may be united by the fioor A and roof A without soldering the integral corners.

As best shown in Fig. 4, the inner wall and the door A are each provided with a reflector K, recessed to receive a glass cover L and a spring-ring M. Said ring M is so fitted to the annular seat as to normally retain the cover L in the position shown in Fig. 4 As best shown in Fig. 3, the extremities m of the spring-ring M project toward the interior of the flame-chamber A to be readily grasped and contracted for removal, so that the cover L may be removed and cleaned at the will of the operator. I find it convenient to pro vide said reflectors K with respective outer casings Nin such relation as to afford an intermediate air-chamber O. Said chamber 0 is provided with air inlet and outlet apertures o 0, and such construction is advantageous in that overheating of the reflectors K and covers L is prevented by the circulation of air through the chambers O and A.

I do not desire to limit myself to the particular construction I have illustrated, as it is obvious that various modifications maybe made therein without departing from the essential features of my invention.

I claim-- 1. In a lamp, the combination with a casing provided with a'burner; of a plurality of interchangeable fluid-containing receptacles removably supported by the casing, each of said receptacles being, adapted to be brought into communication with the burner, substantially as set forth.

2. In a lamp, the combination with a casing provided with a burner; of a plurality of interchangeable fluid-containing receptacles removably supported by the casing, substantially as set forth. r

3. In a lamp, the combination with a .casing provided with a burner; of a plurality of interchangeable fluid-containing receptacles supported by the-casing, anddetachably connected to each other, substantially as set forth.

4; In a 1amp,the combination with a burner; of a plurality of oil-receptacles'adapte'd'to be operatively connected with said burner; one

of said receptacles being provided-inits bottom with a cap for removably attaching a counterpart receptacle thereto; the said oilreceptacles being reversible to bring them successively into communication with the burner, substantially as set forth.

5. In a carriage-lamp, the combination with a removable burner; of a'flame chalmber in ber' uniting said side walls;a rooftorsaid chamber uniting said side Walls; a ch mney in said roof ;i a removable oil-receptacle 0peratively connected with said burner; a'draftchamber inclosing said receptacle; a removable cap for'thebottom of said draft-chainber; reflectorrecesses respectively fixed in 'one of said side walls and in said door; exterior casings for said reflectors; air-chambers intermediate of said reflectors and their respective casings; andair-vents for saidre- V flector air chambers, substantially as set forth;

EDWIN M. ROSENBLUTIIi 

